40s

noun

Definitions

Noun
  1. 1
    The decade of the 1940s. uncountable
  2. 2
    plural of 40 (“bottle of beer”) form-of, plural
  3. 3
    The small subunit of the eukaryotic 80S ribosomes. uncountable
  4. 4
    A range of the numbers forty (40) to forty-nine (49). uncountable

    "Women in their 40s were counseled to make individual decisions together with their health care provider, but there was no explicit recommendation for them to start until they turned 50."

Etymology

Etymology 1

Abbreviated form of 1940s.

Etymology 2

Referring to its sedimentation coefficient measured in svedbergs (S).

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